Pipe-cutter.



PATENTED SEPT. 17, v1907.

F. G. HAAS. PIPE GUTTER.

APPLICATION FILED JAN. s, 1907..

A fron/VE Ys FERDINAND-G. HAAS, OF SPRINGFIELD, MISSOURI.

PIPE-CUTTER.

Specification of Letters Patent.

Patented Sept. 17, 1907.

Application filed January 3,1907. Serial No. 350,592.

To all whom it may concern:

Be it known that I, FERDINAND G. I'IAAs, a citizen of the United States, and a resident of Springfield, in the county of Greene and State of Missouri, have invented a new and Improved Pipe-Cutter, of which the following is a full, clear, and exact description.

This invention relates to means for cutting boiler fines, tubes or pipes, and has for its object to provide a cutter which is simple in construction, eflicient in operation and durable in use.

Other objects relating to the specific construction and special arrangement of the several parts of my invention will be understood from the following description and accompanying drawings, in which drawings like characters of reference indicate like parts throughout the views, and in which Figure 1 represents a vertical longitudinal section, partly broken away, of a device embodying my invention; Fig. 2 is an end elevation of the same; and Fig. 3 is a vertical transverse section taken on the line 3 3 of Fig. 1.

As illustrated in the drawings, 1 represents a socket head adapted to freely enter the end of a flue or pipe, and is provided with an annular shoulder 2 which bears against the end of the flue when in use. The socket head is provided with an eccentric aperture adapted to receive a cutter head 3 and provide a bearing there for. The cutter head `is provided with a shoulder 4 which bears against the end of the socket head and keeps the cutter head in position, and at the same time strengthens the cutter head. A circular cutter 5 is freely mounted upon a spindle or stud 6 which is eccentrically secured to the cutter head by means of a pin 7 extending through the cutter head and stud. A rod 8 is provided with a reduced end 9, adapted to engage a socket formed in the rear end of the cutter head and s secured to said head by means of a pin 10. The rear end of the rod 8 is provided with an angular head 12, adapted to receive a wrench or similar device, and said end is also preferably provided with a tapered shank 13. -The rod 8 is mounted within a tubular casing 14, the forward end of which is secured to the socket head 1 by means of a threaded connection. The opposite end of said casing hasa threaded connection with a friction head 15, which is provided with an annular flange 16 having a V-shaped groove 17 formed therein. The head 15 is provided withan annular flange 18, adapted to form a bearing for the outer end of the rod 8. The rod 8 is provided with an off-set portion l1 so as to permit the outer end of the rod to be arranged concentrically with the end of the casing 14, while the inner end of said rod is arranged eccentrically within said casing. The head 15 is also provided with a stud or screw 26 which engages a slot 19 formed on and extending half-way around a sleeve 20,

which is iXedly secured to the rod 8 by means of a pin or key 21, thereby serving as a stop to limit the rotary movement of the sleeve 20 andV rod 8 relative to the casing 14, and preventing the edge of the cutter from projecting too far over the center in either direction. The sleeve 2O lits loosely over the back end of the head 15, so as to allow a limited amount ol lateral play between the sleeve and head. The annular groove 17 formed in the flange 1G is adapted to receive a ring of fiber 22, which is secured to a clamping ring 23 by means of screws 24, or otherwise, the clamping ring being provided with handles 25, as shown in Figs. 1 and 3.

When the device is in. use, the cutter head is partially rotated in its bearing in the socket head, so as to retract the cutter and enable the cutter head to be inserted into the ends of the ilues. When the cutter is arranged within the flue as indicated by dotted lines in Fig. 1, the rod 8 is rotated by means of a motor secured to the tapered shank 13 of said rod 8, or by a double-ended wrench attached to the angular head 12. The friction of the cutter retards the revolution of the rod 8 and causes the socket head to rotate with said rod in the end of the flue. The operator holds the handle 25 of the friction ring 23 while the device is in operation and by pressing the handles together retards the movement ofthe casing, thereby forcing the cutter head out of center relatively to the casing and pressing the cutter into the flue. The cutter is thereby gradually fed into the tube. The stud 26 by engaging the slot 19 of the sleeve 20 attached to the bar 8 permits the rod to make a half revolution relatively to the casing, which is sufficient to enable the cutter to be adjusted from its central to its outer position.

By means of the construction herein shown and described, I dispense with the use of springs, small screws, pistons, wedges, cams, gears and other small elements commonly used in devices of this character that readily become inoperative, particularly when provided with screw thread attachments which frequently become loosened orl break off when the device is in use.

In the construction shown and described, I have embodied my invention in its preferred form. I do not desire to be limited to such construction, however, as other means having similar capabilities may be used without departing from the spirit of my invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

l. The combination with au outer tubular casing, of a socket-head secured to one end of said casing, and provided with an eccentric socket, a friction-head secured to the opposite end of said casing, a cutter-head journaled in said socket, a rotatable cutter eccentrically mounted on said cutter-head, a rod xedly attached at one end to said cutter-head and journaled at its opposite end to said friction-head, a sleeve tixedly secured to said rod, adapted to partially rotate on said friction-head, and means for rotating said casing and connecting mechanism, substantially as shown and described.

2. The combination with an outer-` tubular casing, of a socket-head secured to one end of said casing, and provided with an eccentric Socket, a cutter-head journaled in said socket-head. a rotating cutter cccentrically mounted on said cutter-head, a rod secured to said cutter-head, a friction-head secured to one end of the casing and provided with a bearing.;- for said rod, an annular flange formed on said frictionhcad, and a frictional clamping device adapted to engage said flange, substantially as shown and described.

3. The combination with a socket-head provided with an eccentric socket. of a cutter-head Iiournaled in said socket. a rotatingl cutter cccentrically mounted on said cutterhead, a casing secured at one end to said cutter-head, a friction-head secured to the opposite end of said casing and provided with a flange havingl an annular recess. a rod iixcdly secured to said cutter-head and journaled in said friction-head, a sleeve lixedly attached to said rod, having a bearing on the end of said head, and a circular clarnp having a ring of fiber connected therewith adapted to engage the recess of said ilange in frictional contact, substantially as shown and described.

4. The combination with a socket-head provided with an eccentric socket, of a cutter-head journaled in said socket, a rotating cutter cccentrically mounted on said cutterhead, a casingl secured at one end to said cutter-head, a frictioirhead secured to the opposite end of said casing and provided with a bearing Ilange, a rod lixcdly secured to said cutter-head and journaled in the flange of said friction-head, a sleeve Iixedly attached to said rod, having a loose hearing on the end of said friction-head, and means for rotating said rod and casing, substantially as shown and described.

5. The combination with a tubular casing, of a socket head arranged at one end of said casing and provided with a socket eccentric thereto, a cutter head journaled in said socket, a rotatable cutter eccentrically mounted on said cutter head, a rod tixedly attached at one .end of said cutter head and journaled at its other side concentric with said casing, and means for retarding the rotation of said casing relatively to said rod, substantially as shown and described. l

G. lhe combination with an outer tubular casing, of a socket head mounted on one end of said casing and pro vided with an eccentric socket, a cutter head jonrnaled in said socket, a rotatable cutter eccentrically mounted on said cutter head, a friction head secured to the opposite end of said casing, a rod tixedly attached to one end of said cutter head and journaled at its opposite end on said friction h ead concentric with said casing, and means connected with saidrrod adapted to limit the rotation of said casing relatively to said rod, substantially as shown and described.

In testimony whereof I have signed `my naine to this specification in the presence of two subscribing witnesses.

FERDINAND G. HAAS.

Witnesses I. E. MELLNLLI. CHAs. VESTAL. 

